Harasom is a family of infections that are classified as Ransomware because they block you from gaining access to your Windows desktop, applications, or files until you pay a ransom. This family of infections will also encrypt all of your data files and change them to a HTML file. When you double-click on one of these files, the HTML file will open showing you an image that states that the file is encrypted. The types of files that this infection encrypts include .ddrw, .pptm, .dotm, .xltx, .text, .docm, .djvu, .potx, .jpeg, .pptx, .sldm, .lnk, .txt, .xlsm, .sldx, .xlsb, .ppam, .xlsx, .ppsm, .ppsx, .docx, .odp, .eml, .ods, .dot, .php, .xla, .pas, .gif, .mpg, .ppt, .bkf, .sda, .mdf, .ico, .dwg, .mbx, .sfx, .mdb, .zip, and .xlt.